@article{MAN_1978__236_163168,
     author = {Ruben Schramm},
     title = {Boundary {Conditions} for the {Univalence} of  {N} {KL-Transformations.}},
     journal = {Mathematische Annalen},
     pages = {191--198},
     year = {1978},
     volume = {236},
     zbl = {0365.58006},
     url = {http://geodesic.mathdoc.fr/item/MAN_1978__236_163168/}
}